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<head>
    <title>首页</title>
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1. request对象的path,encoding属性：<br/>
{{ str }}

<br/>
2.request对象的method属性：<br/>
<a href='/method_show/'>get方式</a><br/>
<form method="post" action="/method_show/">
    <input type="submit" value="post方式">
</form>
<br/>

</body>
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